Keeping an eye on patent related news can give a real insight into where companies are focusing their efforts or areas that they are considering moving into.  

This article highlights a few areas that Amazon and Apple are working in/filing patents in in the medical field.  Whilst I can see the merits in the collaboration between Apple and  Zimmer Biomet to provide information to patients and to monitor progress before and after knee and hip replacements, I'm less convinced I like the idea of Alexa diagnosing me, where I'm pretty sure the main reason is the push to try and sell me something!